Quote:
Originally Posted by Joenavy85
I'm obviously misunderstanding what you're saying here, i always though that the air around the base of the windshield was at a higher pressure (relatively speaking) due to the sudden direction change. I'm in no way questioning your comment, only asking you to elaborate so i can understand better.
|
The cowl area is at a lower pressure than the forward stagnation point but further away from tailpipes and generally where auto designers harvest ventilation air for the cabin.
NASCAR also chooses this location for their cowl-induction engine combustion air.
At the base of the A-pillars,around the A-pillars themselves, and over the windshield header,is the point of maximum air velocity for a car,up to 1.5X the road velocity on a calm day.And respecting Daniel Bournoulli's Theorem for velocity/pressure,these areas are also the point for highest velocity pressure,and lowest static pressure.This is exactly what makes aerofoils operate.
If you're looking or a low static pressure area to bleed air into, this is it.